What alloy is this.

[lwg]

I was at a yard sale today and bought a lawn roller this was on it for extra weight. It melts at 580 deg F, Tests at 9 BHN. What do you think it is ?

103925

[madsenshooter]

I have seen Stanley Process stamped on babbitts, and United American Metals makes a few. I don't know of any babbitts that soft though.

[62chevy]

Looking at this post it MAY be mostly lead with a little tin and antimony in it.

http://castboolits.gunloads.com/showthread.php?66241-Melting-points-of-Lead-and-Alloys

[HollandNut]

BHN of 9 is where wheel weights are at

40:1 30:1 and 20:1 are all in that area as well

Babbit is hard very hard

[bangerjim]

Boolit feed stock. Melt it, cast it, shoot it. 9 is darn near pure lead.

That is the problem with acquiring unknown metals. Many old foundries made lots of different alloys and did not ID them well at all. If I do not what it is, I just dump in the pot as (in your case) 9bhn lead.


bangerjim